James wasson miller



(No Model.)

4 J. W. MILLER.

v COFFEE AND SPICE MILL. No. 345,441.

d', ATTORNEYS.

INVENTOR:

Patented July 13, 1886.

N. ETERS. Pnoxodimognphnr. Washingwn. nc.

NITED STATES PATENT rric JAMES WASSON MILLER, OE BUTLER, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND ALBERT W. BAIRD, OF SAME PLACE.

COFFEE AND SPICE lVlILL.

SPECIFICATION forming part of Letters Patent No. 345,441, dated July 13, 1886.

Application tiled February 2, 1886. Serial No. 190,615.

.To .a2/'Z whom, it may concern:

Bc it known that LJAMns WAssoN MILLER,

of Butler, county of Butler,and State of Pennsylvania, have invented a new and Improved 5 Coffee and Spice Mill, of which the following is a full, clear, and exact description.

My invention relates to mills designed more especially. for grinding coffee and spices, but is applicable also for reducing other substances; and the invention has for its object to provide a simple and inexpensive mill which will perate easily and effectively and present a neat appearance.

The invention consists in certain novel features of construction and combination of parts of the mill, all as hereinafter fully set forth and claimed.

Reference is to be had to the accompanying` drawings,forming apart of this specieation,in which similar letters of reference indicate corresponding parts in all the gures.

Figure l is a central vertical sectional elevation of my improved coffee and spice mill. Fig. 2 is a plan view thereof, with the driving-crank and adjusting nut removed, and with the case or box partly broken away and in section. Fig. 3 is adet-ail view, in side elevation, of the shell in which the grinding cone works, taken at a right angle to the shell, as shown in Fig. l; and also shows the means for attaching the shell to the top of the case of the mill, which is shown in part and in section. Fig. 4 is a plan View of the adjusting-nut, and Fig. 5 is a plan View of the inner end ofthe driving crank of the mill.

The shell,A,in which the grindingcone B of the mill works, is largest in diameter at the bot` tom, whence it tapers upwardin curved close sides to a point about in line with the under side of the top, c, of the caseor box C of the mill,and to which top the shell is fastened by screws a, passed through lugs ci cast on the shell. (See Fig. 3.) Above the lugs a', diametrically opposite curved bars c2662 project from the body ofthe shell to give support therefrom to the long journal or hollow shaft A', in which the long stem b of thegrinding-cone B has its bearing, and between these bars co2 co'l'the coffee or other substances to be ground feeds downward by gravity from the mill-hopper D, between (No model.)

the serrated or toothed outer face of the cone B and the inner toothed or serrated face of shell A,for reducing the substance to a degree of lineness,which may be regulated by adjustend e of the stem of the grinding-cone. The inner end or collarf of the crank F has an oritice, G, shaped to tit the tinted upper end p0rtion, b', of the cone-stem b, which allows the cone-stem to slide freely in the crank while 6o the conc is being adjusted by the nut E, and compels `the cone to turn when the crank is turned.

The shell A has cast at its lower edge and at right angles to the lugs a a, the lugs a3a3,t0 65 which is fastened by screws or rivets a crossbar, H, which extends below the grindingcone B,and hasY on its lower side a boss or collar, h, in which is iitted toslide snugly the pin I, and at the upper face of the bar H there is 7o a collar, h, enough larger than the pin I to allow a spiral spring, J, to be placed around the pin, between the bar H and a cross-pin, i, fixed in the pin I near its upper end. This spring J tends to expand and force the rounded upper end of the pin I into a correspondinglyshaped recess made in the lower end of a stud, b2, which is cast on and is pendent from the center of the inside of the grinding-cone B. The pin I supports, centers, and steadies the 8o grindingcone at its lower end, and the pin will move up or down with the cone as the cone may be adjusted by the nut E.

The crank F is provided with a knob or handle, F', which may be struck up or cast in 85 metal or turned from wood, so as to provide an upper central recess, f through the floor of which a screwbolt or rivet, f2,is passed for attaching the knob to the crank.

The serrated exterior grinding-surface of 9o the cone B, by being convexed or curved, in stead of being formed inclined from its upper smaller to its lower llarger end, 'presents a greater grinding-surface, and also will have greater strength for a given size and weight of the cone than if the sides o'f the cone were straight. Y'

I make the hopper D preferably of a single piece of sheet metal, struck up by a die to form the inner bowl-shaped portion, (hand the outlos ing the nut E, which is threaded to the screw 55 er vertical wall, d, which restI on top of the case C, to which the hopper is fastened by screws d, passed through the bowl d. (See Figs. l and 2.)

The case C consists of the top c and a bottoni, c', rounded marginally, and provided with annular grooves c2 ci", respectively, into which the opposite edges of the cylindrical sheet-metal body or side wall, c, of the case is tted, and the wholeis held together by long wood screws or bolts c", passed upward into the case-top c, through its bottoni c', as shown in Fig. l,

The drawer K, which receives the ground cot'l'ee or spices` is made in the forni clearly shown in full and dotted linesin Figs. l and 2, and of sheet nietal cut out and bent up and soldered to forni a tlat bottoni, 7c, straight sides la k, and curved ends if? 7.22, and one end ofthe drawer is attached to a correspondingly shaped loose section or parti, f, ofthe body or side wall, c, of the ease; and the part 7J* has fixed to it, a knob, k, by means of which the drawer may bc opened and closed.

\Vith the hopper D and ease C inade and connected as above described, the mill prei scnts a very neat appearance,a1idtl1e exterior surfaces ofthe hopper and case may have any desired plain or ornamental finish.

Having thus fully described my invention, I clai rn as new und desire to secure by Letters Patent- The combination, with the grinding-cone having in its eoneaved under side a pendent stud and the surrounding shell, of the cross bar bolted at its ends to the lower edge of said shell and provided with a boss or collar upon its lower side and with a collar upon its upper side, the pin heilig fitted to slide snugly in the lower collar or boss 0t` said cross-bar and entering at its upper end the pendent stud of said grinding-cone,and the spring held upon said pin and between the latter and the upper collar of said cross-bar, substantially as and for the purpose seti forth.

J AMES WASSON MILLER.

Witnesses:

FRANK KoHLnn, J. W. RUssiaLL. 

